Collapsible box



Feb. 17, 1931. LQJ. sPlTzENBERc-:ER 1,793,025

COLLAPSIBLE BOX Filed March 20. 1929 INVENToR.-

Patented Feb. 17, 1931 LOUIS J. SPITZENBERGER, OF ST. PAUL, MINNESOTACOLLAPSIBLE BOX'.

Application led March 20, 1929. ySerial N'o. 348,489.

My invention relates to boxes in general land more particularly to boxesmade of paper, cardboard, fibre and other suitable flat material and tobe used for various purposes such as containers for candy, pills, 'orlike articles. The main object is to provide a substantial box made of asingle piece of material and adapted to be easily and readily assembledfor use, without the necessity of using glue or like holding means. Thisbox is the so-called shoulder type most commonly used as in drug storesforholding a Vquantity of pills, powders and the like. In larger sizesit is practical for candy, stationery, cards and other merchandise.'Further objects and advantages of my improved box are hereinafter fullyset forth reference being had to the accompanying drawing in which,-

Fig. 1 is a plan view of a blank sheet or form showing a blank for asquare type shallow box.

Fig. 2 is a top View of a box assembled from a blank of the typeillustra-ted in Fig. 1, the top or cap part of the box being shown inopened position.

ig. 3 is a rear edge view of the box shown in Fig. 2 and closed.

Fig. 4 is a perspective view of my improved box with the cover raised,the nearside flange (-Isaid cover broken to give a clear view of theinterior.

Fig. 5 is a top view of the box shown in Fig.

2, looking down on the cap, thebox beingl closed.

Referring to the drawing by reference numerals, I have illustrated ablank form adapted to be assembled to provide a square type shallow boxof the so-called shoulder type best shown in Fig. 4., but it will bereadily understood that its features of details, proportions andassembling may be varied to provide finished boxes of other shapes, a

square type being shown and described to best advantage. l

In Fig. 1 heavy black outlines indicate the outline and cuts of theblank from which a box as shown in Figs. 2, 3, 4 and 5 is assembled.Dotted lines indicate creases or folding operator is a lines in theblank to facilitate the assembling or forming of the box.

5 is a top panel, 6 a like base or bottom panel, and 7 is a false-bottompanel arranged to lie on panel 6 when the box is assembled. 55 Panels 5and 6 are separated normally by an integral strip 5H having a centralcrease 5H serving as a hinge for the assembled cover of the box and thewidth of said strip determining the depth ofthe box. 5F and 5G G0 areright and left side flanges formed integral withl panel 5 and dividedtherefrom only by crease lines 11, while 5C is a like flange adjoiningat line 12 the outer edge of panel 5. To the right and left of saidflange 5G are adf joining flange sections 5D and 5E (right) and 5Avand5B (left) of which 5E and 5A are at the extreme right and left, flange5A having an upwardly opening central notch 13 and flange 5E having alike downwardly 70 opening notch 14. Likewise the bottom panel 6 has anadjoining outer flange 6C, left side flange 6E and rivht side flange 6G.-To the right of flange 66 are two alined flanges 6D and 6E, and to theleft thereof like flanges 7 6B and 6A. The outermost of said latterflanges 6A and 6E have notches 13A. and 14A corresponding to notches 13and 14 previously described and `for a purpose to be presf ently stated.30

7A, 7B, 7C, 7D and 7E is a row of flanges adjoining each other on thecreases 15 and panel 7A connected at crease 16 to the strip 5Hseparating the top and bottom panels 5 and 6. The false bottom 7 adjoinspanel 7D on crease line 17 and 7E is la comparatively short flange atthe extremity of the line of flanges 'iA-7 E inclusive. These wideflanges (7A-7E incl.) are approximately the same width as the strip 5Hand extend preferably one Way therefrom in parallel relation to therespective upper and lower lines of flanges Cil The assembling of thebox from its blank form is a sim le process. Assuming that an gout toassemble a box from a blank as illustrated in Fig. l, he first bends theWide flanges 7A-7E inclusiveat their creases 15-16 into square formationwith the short piece 7 E bearing against the inner Cil 4flange GC of thebase is bent up on its crease 1S to bear against the outer lower part ofsection 7B (Fig. 2) and the respective right and leftcontinuationflanges (il.) and Gli are folded in against the sections (3G and (3F ofthe base 6. Thus the extreme end parts GIG and GA protrude rearwardlyfrom the stri p 5H which is now of course in verti al plane. and saidpieces GE and 6A are folded toward cach other against the back of strip5H and interlocked at their notched parts 13A and 14A (sec Fig. 3).

It will now be understood that a double walled upwardly opening box body(as Fig. l) has been assembled, in which the inner and widerquadrangularly formed panels 7A to 7E inclusive project upwardly fromthe false bottom 7, and project above the upper edge of the similarlyformed exterior flanges GA, 6B, 6C, GD and 6E, bearing inwardly on theexterior faces of the wider flanges, thus forming the shoulder effect asat S in Fig. 4.

Now the cover is similarly formed by first folding its side panels 5Fand 5G up at right angles from the cover panel 5. then folding the outermulti-section flange (5A-5E inclusive) upwardly so that section 5Ccloses the third side of panel 5, forming a U-shape in connection withthe flange pieces 5F and 5G. Then the sections 5D and 5B are foldedinwardly against the outer faces of side panel flanges 5G and 5Frespectively. Thus the top panel is inclosed on three sides by saidflanges 5F, 5G, 5B, 5C and 5D and the fourth side comprises the upperhalf of strip 5H (above crease H). Said fourth side is furtherreinforced and the cover made rigid and held assembled by folding theextreme flanges 5A and 5E toward each other against thel upper half ofstrip 5H and interlocking them at the notches 13--14 see Fig. 3). Nowthe cover is complete and integrally connected to the main box at thecrease 5H of the strip 5H which latter is in reality the outer rear wallof the box proper.

The cover of course can be swung forward and down to fit snugly aboutthe quadrangularly arranged protruding parts of the flanges 7A-7Einclusive and stops against the shoulder S. The box thus closed (as inFigs. 3 and 5) is substantial and well set up, resists breaking and ispractical in various sizes for different purposes.

Hitherto, in the box industry, small paper boxes particularly have beenassembled and shipped ready for use, obviously taking up much space.Such boxes, as now made, are also assembled in a costly manner involvinguse of' glue. llfy improved box may be shipped in blank form in aminimum of space and isreadily assembled at shipping destination orassembled only one at a time as needed.

I claim:

1. A box made of a single integral piece of flat material and includinga base panel, a

i false bottom adapted to lie concentric on said base panel, a coverpanel and an integral spacing strip between said base and top panels, amulti-.section wide. flange strip extending from one end ot' saidspacing strip and one of said sections adjoining a. side of said falsebottoni panel, a lila` but narrower flange strip adjoining the outeredges of the top and bottom panels and a side extension strip extendingoutwardly from each side of the top and bot-tom flanges, crease lines atall .raid adjoining parts, said Wide flange strip arranged to be bentinto square formation and upright aroundthe four sides of thefalse-bottom panel when the latter is laid upon the base panel, saidnarrow flange strip at the outer side of the base panel arranged to bebent up and thence about and against the outer sides of said wideflanges and the extreme outer sections of said narrow flange arranged tooverlap at the rear side of the box and interlocked to bear against thelower half of the spacing strip raised upright from the base panel.

2. The structure specified in claim l and said cover consisting of twoside flanges formed integral of the cover panel and bent up at rightangles to the panel, and its said multi-section flange strip arranged tobe bent up also in upright plane and its sections arranged in squareformation with two flange sections bearing against the outer sides ofsaid panel side sections and the extreme end sections of said flangearranged to be overlapped and interlocked against the outside and upperhalf of said spacing strip.

3.. A box made of a single piece of flat maferial comprising a basepanel, a top or cover panel and aA false-bottom panel, a spacing stripbetween said cover and base panels, multi-section flange .strips formedintegral with each said cover and base panel, rzind single section sideflanges formed integral with said cover and base panels, all saidseetional parts separated by crease lines or an equivalent to readilybend the flange strips in continuous formation about their respectivepanels and upright thereon, cach box body comprising the false bottompanel and its flange members about it and lying concentric on the basepanel and subsequently raising the flange parts of said base and againstthe flange parts of the false bottom and means for interlocking the saidbase lUU lll.)

flanges to inclose the lower areas of the false base-panel flanges.

4. The structure specified in claim 3 and each box cover comprising saidcover panel, its side flanges raised upright thereon and itsmulti-section flange also raised and bent at the crease lines to form aqnadrangular upright flan e about the cover anel and its raised sidegauges and means or interlocking the end sections of said multi-sectionange at one side of the said cover panel, said cover assembled forming ashallow member with perimetrical ange and adapted to be pressed downupon the upwardly directed permetrical flange formed by the adjacentupwardly directed ange sections of the false-bottom panel, substantiallyas shown and described.

In testimony whereof I alix my signature.

LOUIS J. SPITZENBERGER.

